Wikispaces is the best way to create collaborative Web pages that you can edit and share. You can watch Wikis in Plain Englishby Common Craft of visit the world's largest collaborative online encylopedia, Wikipedia. If you're in need of a FREE website to share your precious thoughts, here is the place to begin."A wiki is a space on the Web where you can share work and ideas, pictures and links, videos and media — and anything else you can think of. Wikispaces is special because we give you a visual editor and a bunch of other tools to make sharing all kinds of content as easy for students as it is for their teachers." - Wikispaces website

WikiDot is a Wiki builder you can use to share content, documents, and collaborate with other students, colleagues, and friends. You can create pages, forums, and separate Wikis for groups and friends to discuss: topics, upload files, documents, notes, and images. They are FREE to be shared with your community!WikiDot provides professional, high quality sites just for everyone. It is a host that has toolsto create a website without knowing HTML, PHP, JavaScript etc. With Wikidot you can create your personal site, your company's website, as well as big portals and huge community forums with thousands of users.

Wiggio is an online tool kit that lets you work in groups easily. You can send emails, text messages, and voice mails. It makes life easier to share files and poles. You can also set up video conferences and keep a shared calendar as well as keep track of your group's tasks and resources.Wiggio is designed to be easy and straightforward, even for the least tech-savvy members of your group - it provides everything you need to work productively in your groups, without bogging you down with complexities and unnecessary features. Wiggio is currently used by over 100,000 groups, including:

Webnote is a tool for taking notes on your computer. You can also share your notes with others by giving the workspace a name or URL. This can be an invaluable resource for all those learners who rely daily on online research. No more copy/pasting every tad of information.Webnote is a tool for taking notes on your computer. It allows you to quickly write something down during a meeting, class, or any other time that you have a web browser available.

You start by creating a workspace and creating notes in the workspace. You can save your workspace at any time and return to them from the same computer or any other computer. You can also share your notes with others by providing the workspace name (or url) to a friend. - Webnote resource

Calling all artists out there! Just found this unique site that offers a collaborative-painting project. What a way to get your online learner involved with other artists of same likes! WebCanvas allows you to paint using basic tools to strike your creative fancy."WebCanvas is an on-line collaborative art initiative to create the World’s largest collaborative painting. Uniting the participation of a world-wide community of artists, this project endeavours to create an infinite and eternal painting that is continuously evolving.

On WebCanvas it is possible to paint using a number of different basic tools, upload and post professionally drawn images, or simply watch others paint live!

This initiative is also completely open and free to anyone that wishes to participate, and the only requirement is to have an up-to-date web-browser capable of the latest web-technologies.

WebCanvas is different from other on-line painting initiatives mainly due to the introduction of the WebCanvas concept, where by a painting is no longer limited by a specific frame size. This innovative concept, that introduces a Web-based continuous and ‘virtually’ Infinite Canvas, is patent pending and was developed and conceptualized by Antonio Roldao Lopes." - WebCanvas info